IMPORTANT ELECTRICAL PROPERTIES OF CRNGO

Core Loss details of popularly used CRNGO steel. Manufacturing mills of CRNGO steel guarantee the core loss figure at flux density of 1.5 Tesla.

Thickness	Grade	Specific Cores Loss W/kg. At.		Magnetic Induction At 5000 AT/m(T)	Hardness (VPN)
		1.0 T 50 Hz	1.5T 50 Hz
0.50 mm (0.020)	M-36	1.84	3.57	1.60	160-180
	M-43	1.70	4.01	1.61	160-180
	M-45	2.30	5.31	1.64	130-150
	M-47	4.00	6.98	1.68	130-150
0.65 mm (0.026)	M-36	2.16	4.18	1.60	160-180
	M-43	2.52	4.70	1.60	150-170
	M-45	3.03	6.27	1.64	130-150

The laminations are being supplied through CRNO 0.5mm Thick, Electrical steel grade. Insulated on both sides from
Indigenous as well as imported material.
T.P. means Three Phase.
Strips as per Customer’s specification can also be supplied.
Supplies can be made from CRNGO 0.35 mm thick imported electrical steel grade on specific request.
See reference figure given below for above sizes.
S-represents specially developed sizes as per the prevailing conditions in present day market.
100 is available in 3 phases only.
* Available with and without hole.

SPECIFICATION CHART-STANDARD SIZES OF TRANSFORMER LAMINATION (E&I) LAMINATION DIMENSION (m.m)/(INCHES)
TYPE NO.	UNIT	A	B	C	D	E	F	G	HOLES
									No.	Dia	Distance
80	MM	4.8	19.1	15.9	2.4	2.4	11.1	4.8
	INCH	0.189	0.752	0.626	0.094	0.094	0.437	0.189
32	MM	6.4	25.4	19.1	3.2	3.2	12.7	6.4
	INCH	0.252	1	0.752	0.126	0.126	0.5	0.252
17	MM	12.7	38.1	31.8	6.4	6.4	19.1	6.4
	INCH	0.5	1.5	1.252	0.252	0.252	0.752	0.252
INT41/ 17SPL	MM	13	41	33	6	6	21	8
	INCH	0.512	1.614	1.299	0.236	0.236	0.827	0.315
12	MM	15.9	47.6	39.7	7.9	7.9	23.8	7.9
	INCH	0.626	1.874	1.563	0.311	0.311	0.937	0.311
74	MM	17.5	52.4	43.7	8.7	8.7	26.2	8.7
	INCH	0.689	2.063	1.72	0.343	0.343	1.031	0.343
23	MM	19.1	57.2	47.6	9.5	9.5	28.6	9.5
	INCH	0.752	2.252	1.874	0.374	0.374	1.126	0.374
30 *	MM	20	60	50	10	10	30	10	4	4.1	50
	INCH	0.787	2.362	1.969	0.394	0.394	1.181	0.394
45 *	MM	22.2	66.7	55.6	11.1	11.1	33.3	11.1
	INCH	0.874	2.626	2.189	0.437	0.437	1.311	0.437
15 *	MM	25.4	76.5	63.5	12.7	12.7	38.1	12.7	4	5.5	63.5
	INCH	1	3.012	2.5	0.5	0.5	1.5	0.5
33 *	MM	28	84	70	14	14	42	14	4	5.5	70
	INCH	1.102	3.307	2.756	0.551	0.551	1.654	0.551
3	MM	31.8	95.3	79.4	15.9	15.9	47.6	15.9	4	6	79.3
	INCH	1.252	3.752	3.126	0.626	0.626	1.874	0.626
16 or 4	MM	38.1	114.3	95.3	19.1	19.1	57.2	19.1	4	6	95
	INCH	1.5	4.5	3.752	0.752	0.752	2.252	0.752
5	MM	38	120.7	95.3	19.1	19.1	57.9	22.2	4	6.2	101.8
	INCH	1.496	4.752	3.752	0.752	0.752	2.28	0.874
6	MM	38.1	127	114.3	19.1	19.1	76.2	25.4	4	6.2	107.4
	INCH	1.5	5	4.5	0.752	0.752	3	1
INT-120	MM	40	120	100	20	20	60	20	4	5.5	100
	INCH	1.575	4.724	3.937	0.787	0.787	2.362	0.787
43 or 7	MM	50.8	152.4	127	25.4	25.4	76.2	25.4	4	7	127
	INCH	2	6	5	1	1	3	1
8	MM	50.8	184.5	171.5	25.4	25.4	120.7	41.3	4	9	159.5
	INCH	2	7.264	6.752	1	1	4.752	1.626
8-B	MM	76.2	235	196.9	38.1	38.1	120.7	41.3	4	10	197
	INCH	3	9.252	7.752	1.5	1.5	4.752	1.626
S-10	MM	63.5	190.5	158.7	31.7	31.7	95.2	31.7	4	10	159
	INCH	2.5	7.5	6.248	1.248	1.248	3.748	1.248
S-9	MM	76.2	228.6	190.5	38.1	38.1	114.3	38.1	4	13	190
	INCH	3	9	7.5	1.5	1.5	4.5	1.5
S-14	MM	88.9	266.5	222.2	44.4	44.4	133.5	44.4	6	13	227.3
	INCH	3.5	10.492	8.748	1.748	1.748	5.256	1.748
S-6	MM	44.5	133.5	111.4	22.5	22.5	66.5	22.5	4	6.2	111.5
	INCH	1.752	5.256	4.386	0.886	0.886	2.618	0.886
43(T.P)	MM	25.4	152.4	127	25.4	25.4	76.2	38.1	4	7	127
	INCH	1	6	5	1	1	3	1.5
8B(T.P)	MM	38.1	235	196.9	38.1	38.1	120.7	60.3	4	10	197
	INCH	1.5	9.252	7.752	1.5	1.5	4.752	2.374
100	MM	101.6	355.6	254	50.8	50.8	152.4	76.2	6	13